157620072 has 32 divisors (see below), whose sum is σ = 403663680. Its totient is φ = 51258240.

The previous prime is 157620059. The next prime is 157620079. The reversal of 157620072 is 270026751.

It is not an unprimeable number, because it can be changed into a prime (157620079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79108 + ... + 81075.

It is an arithmetic number, because the mean of its divisors is an integer number (12614490).

Almost surely, 2^157620072 is an apocalyptic number.

157620072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157620072 is an abundant number, since it is smaller than the sum of its proper divisors (246043608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157620072 is a wasteful number, since it uses less digits than its factorization.

157620072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160233 (or 160229 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 157620072 is about 12554.6832696010. The cubic root of 157620072 is about 540.1783498677.

The spelling of 157620072 in words is "one hundred fifty-seven million, six hundred twenty thousand, seventy-two".